4020189807 has 16 divisors (see below), whose sum is σ = 5440418048. Its totient is φ = 2640314880.

The previous prime is 4020189781. The next prime is 4020189809. The reversal of 4020189807 is 7089810204.

It is not a de Polignac number, because 4020189807 - 2¹² = 4020185711 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020189809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25932 + ... + 93342.

It is an arithmetic number, because the mean of its divisors is an integer number (340026128).

Almost surely, 2^4020189807 is an apocalyptic number.

4020189807 is a deficient number, since it is larger than the sum of its proper divisors (1420228241).

4020189807 is a wasteful number, since it uses less digits than its factorization.

4020189807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67710.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 4020189807 is about 63404.9667376303. The cubic root of 4020189807 is about 1590.0673477268.

The spelling of 4020189807 in words is "four billion, twenty million, one hundred eighty-nine thousand, eight hundred seven".